My vote goes to NSMB2 because for one, the Wii U is not going to be my top priority, even after it comes out, and 2, I loved the handheld NSMB and NSMB2 looks even better, with streetpass, coin collection modes, and loads of other things. The game would be about 40$ in the US. The Wii U, plus NSMB U would be (most likely) 250+...
I totally agree, I like handheld mario's better but I will play both because they will both be awesome.
NSMBU. Flying Squirrels are awesome. I definitely get NSMB2, Oh, Cape Feather when will you come back?
HOLY SMOKES YOURE RIGHT I hope they do a physics thing like they did with knuckles in Sonic 3 and Knuckles. (When you glided on a enemy you bounce up!)